BERLIN — Chancellor ­Angela Merkel launched her bid for reelection Tuesday, telling party faithful her government has successfully steered Germany through the worst of the European financial crisis and is best equipped to guide it through what may still be tough times ahead.

Speaking at her Christian Democratic Union’s party congress in Hannover, she noted that unemployment in Germany is down, the economy is still growing while others in Europe are stagnating or shrinking, and that the deficit has been reduced.